OS is over-rated and over-priced but someone has to pay for the massive ad campaigns

. Vitually all engines are very good nowadays and all have similar power until you get into things like Rossis. Most of the problems people have with engines when they rubbish them comes from not knowing how to use them properly. Wrong fuels, wrong plugs, the list goes on.
Don't be put off Super Tigre just because they're made in China now. They're made there but the Italian engineers supervise the whole process because they still own ST...they simply moved the factory.